Valve mechanism for gas-engines.



N6. 880,835. PATENTED MAR. 3, 1908.

H. STOLTENBBRG.

VALVE MECHANISM FORGAS ENGINES.

APPLICATION FILED JUNE 12 1905.

2 SHEETS-SHEET l.-

N0. 880,835. PATENTED MAR 3, 1908 H. STOLTENBBRG. VALVE MECHANISM FOR GAS ENGINES IETSSHEET 2.

APPLICATION FILED JUNE 12,1905

n a eras FATE? heron HENRY STOLTENBERG, .OF DAVENPORT, IOWA, ASSIGNOR TO WHITE LILY WASHER COMPANY, OF DAVENPORT" IOWA, A. CORPORATION OF IOWA.

VALVE MECHANXSM FOR GAS-ENGINES.

no. scones.

- Specification of Letters Patent.

fatented March 3, 1908.

Application filed June 121 1905.. Serial llo. 264866.

. and State of lowa, have invented certain new and useful Improvements in Valve Mechanism for GasEngines-, of which thefollowing is a full, clear, and exact description My'invention relates to gas-engines, and its object is to so construct the closed end of the cylinder that easy access can be had to the inlet and exhaust-valves for repair or otherwise. I also provide effective and simply constructed means for operating said exhaust-valve, the details of which will be more fully described and particularly pointed out in the claims. I

in. the drawings :Figure l is a side elevation of a engine embodying my invention. Fig. 2 is a transverse vertical section of the upper part of the same. Fig. 3 is a plan view thereof.

Reference being bad to the drawings A represents a suitable vertically disposed cylinder which is en ported on a suitable base C, in the wa ls of the lower portion of which the driveshait D is journaled. This shaft is actuated in the usual manner by a pitrnan connected at its upper end to the piston head i) in the cylinders, and at its lower end to the crank c of the drive-shaft. The head E for the closed end of the cylinder rna either cast in one piece therewith, or oi a suitable plate bolted or otherwise thereto, and provided with an inlet port 41 and an exhaust port 6, which are preferably, located diametrically opposite each other, and with a suitable sparker I.

The inlet and outlet ports are normally closed by invcrted nushroom valves F and G r ,spectively, the spindlesf andg of which extend up through vertically elongated guide bearings in the central bosses of the The upper end of the spindle of the inlet valve is provided with a suitable nut between this nut and the base of t c guide bosses a coil 6X3ti18l0ffl spring h surrounds the same and seeps the head of the valve normally closed rip against the under side of the inlet ort. An L-sholped pipe section or elbow H fits over the inlet-port, and incloses within the vertical branch thereof, the'spindle of the inlet valve E, which more fully appear.

latter is considerably'shorier than the spindie of the exhaust valve G, as will hereinafter A similar L-shaped pipe or elbow J fits over the exhaus port except that its branches are greater. in diameter.

The height of elbow J is the same, however,

as elbow H, and the horizontal branches of each extend radially outwards in opposite directions and in alinement with one another. These elbows are removably held in position by means of a bridge K, which consists of a bar of metal of such length as to extend from one elbow to the other with the underside of the ends thereof concaved to rest upon and fit over said elbows above the vertical branches thereof. This brid e is secured in the position shown so as to 0 amp the elbows in place by means of a bolt 9, which extends down through the brid e between the verticalbranches oi the el ows, and through the head E of the cylinder and hire a nut on its upper end with which to tighten it.

As stated, the spindle of the exhaust valve G is longer than that of valve F, and it eX-- tends through suitable openings in the up )er wall of the elbow J and the adjacent en of the bridge and has its upper end pivotally connected to the conti -nous end of the walking-beani L by a pivot olt the ends of which are journaled in the ends of corresponding parallel links com losing said beam, thus per mitting the spind e to reciprocate vertically. Between the bridge K and the end of the walking-beam, spindle q is surrounded by a coil exoansion spring M which operates to keep the exhaust port a normally closed.

The walking-beamis fulcrumed mediate its ends to a post in the foot of which is secured to the headE, preferabl' by one of the bolts securing said head to t e cylinder, and the outer end of said beam is connected by a suitably bent vertically disposed connectingrod N to the uppermost extremity of a Z- shaped lever O.

The ends of the drive-shaft extend through their bearings the base C of the cylinder A, and one end thereof is provided with a flywheel B, the peri hcry of which is provided with a series of o liquely arranged vanes B of suilicient dimensions, which, when the fly: wheel revolves create a lateral current of air which blows towards and past the cylinder and keeps the same comparatively cool.

The outer circumference of the cylinder is provided with a series of circumferential flanges which provide a greater area of condensing surface, as shown, and the current of air from the vanes of the fly-wheel is enabled to more effectively cool the cylinder.

The connecting rod N is reciprocated up and down to operate the exhaust-valve by means of a suitable cam 5 mounted on the shaft l of a revolving pinion 3, which latter engages a pinion 2 fast on the adjacent extended end of the drive-shaft ll By the gearing of pinons 2 and 3 the latter is made to revolve once during every two revolutions of the former. Thus during operation every second revolution of thedrive-shaft the cam 5 is brought in contact with the lower edge of the upper horizontal arm of lever 0, thereby raising the same and rod N connected there to and'causing the exhaust-valve to be open duririg'the period cam 5 is in contact with said lever O.

The means for controlling or regulating the speed of the engine/is made the subject matter of a separate application filed in my name and it is therefore unnecessary todescribe the details and operation of the governor mechanism illustrated'in the drawings.

What I claim as new 1s 1. A gas-engine comprising a cylinder hav- 'ing a closed eruhprovided with an inlet port and an outlet port therein, valves therefor, an independent tubular housing for each port that is removably placed over the same and out of communication with each other, and common means which alone secures said housings in place and in which the spindle of one of said valves is journaled. I

2. A gas-engine comprising a cylinder havinga closed end provided with an inlet port and an outlet port therein, valves therefor,

an independent housing for each port that is remova 1y placed over the same and out of communlcation with each other, and p a br dge-plate engaging the upper portion of said housings which alone secures the same in place and in which the spindle of one of said valves is journaled.

3. A gas-engine comprising a cylinder having a closed end provided with an inlet port and an outlet port therein, valves therefor,

ne secures the same in place and in which the spindle of one of said valves I is journaled.

A gas engine comprising a cylinder having a closed end provided with an inlet and an outlet port therein, valves therefor, an in dependent tubular elbow placed over each a of said ports and out of communication with each other, the horizontal portions of said elbows leadingin substantially o posite directions, a bridge connecting an s anning the space between said elbows whic alone secures said elbows in place, and in which the spindle of one of said valves is journaled, and. a belt for connecting said bridge to the closed end of said cylinder.

5. A gas engine comprising a cylinder hav ing a closed end with an inlet and an exhaust port therein, normally closed mushroom valves therefor the spindles of which extend u wards through said closed end, an elbow p aced over the exhaust port and out of com munication with said inlet elbow and having an opening in its top up through which the spinr le of the exhaust valve extends, means for actuating said exhaust valve, and a bridge-plate engaging the upper portion of said elbows which alone secures said elbows.

in place, and in which said spindle is jour-- naled.

In testimony whereof I have hereunto set: 

